The Somigliana Ring Dislocation Revisited: 2. Solutions for dislocations in a half space and in one of two perfectly bonded dissimilar half spaces

摘要

Solutions for Somigliana ring dislocations in an elastic half space and in two perfectly bonded dissimilar half spaces, with the dislocation ring parallel to the interface, are obtained from the Papkovich potential solutions by using Aderogba's Theorem. Interaction between a dislocation and a free surface or a perfectly bonded interface is considered. Implications of the results for the solution of crack problems are discussed.